-（不加限制）casual;random;informal:
chat;chitchat;随便闲谈
betoofreeinone'sbehaviour;行为太随便
-（不拘礼）doasonepleases;doatone'swill:
-（不加考虑）careless;slipshod;asonewishes;pleaseoneself;inaslipshodway:
-（任意;任性）wanton;willful;arbitrary:
-（无论）anyhow;any;nomatter;anyway:
